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Related papers: Equivariant Khovanov homotopy types

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We prove that the Khovanov-Lee complex of an oriented link, L, in a thickened annulus, A x I, has the structure of a bifiltered complex whose filtered chain homotopy type is an invariant of the isotopy class of L in A x I. Using ideas of…

Geometric Topology · Mathematics 2016-12-20 J. Elisenda Grigsby , Anthony M. Licata , Stephan M. Wehrli

In [16] the fundamental relationship between stable quotient invariants and the B-model for local P2 in all genera was studied under some specialization of equivariant variables. We generalize the argument of [16] to full equivariant…

Algebraic Geometry · Mathematics 2018-08-13 Hyenho Lho

We study linearizability of actions of finite groups on singular cubic threefolds, using cohomological tools, intermediate Jacobians, Burnside invariants, and the equivariant Minimal Model Program.

Algebraic Geometry · Mathematics 2025-01-07 Ivan Cheltsov , Yuri Tschinkel , Zhijia Zhang

We study discrete, cocompact, isometric actions of groups on Hadamard spaces, and the induced actions on ideal boundaries. For a class of groups generalizing fundamental groups of three-dimensional graph manifolds, we find a set of…

Differential Geometry · Mathematics 2007-05-23 Christopher B. Croke , Bruce Kleiner

In this paper we show that the known models for $(\infty, 1)$-categories can all be extended to equivariant versions for any discrete group $G$. We show that in two of the models we can also consider actions of any simplicial group $G$.

Algebraic Topology · Mathematics 2014-10-07 Julia E. Bergner

For a $C^{*}$-category with a strict $G$-action we construct examples of equivariant coarse homology theories. To this end we first introduce versions of Roe categories of objects in $C^{*}$-categories which are controlled over bornological…

K-Theory and Homology · Mathematics 2023-06-21 Ulrich Bunke , Alexander Engel

We prove that the spectrum constructed by Gonz\'alez-Meneses, Manch\'on and the second author is stably homotopy equivalent to the Khovanov spectrum of Lipshitz and Sarkar at its extreme quantum grading.

Geometric Topology · Mathematics 2018-03-19 Federico Cantero Morán , Marithania Silvero

We give details of models for rational torus equivariant homotopy theory based on (a) all subgroups, connected subgroups or dimensions of subgroups and (b) on pairs or general flags. We provide comparison functors and show the models are…

Algebraic Topology · Mathematics 2016-04-19 J. P. C. Greenlees

We construct a cofibrantly generated model structure on the category of flows such that any flow is fibrant and such that two cofibrant flows are homotopy equivalent for this model structure if and only if they are S-homotopy equivalent.…

Algebraic Topology · Mathematics 2021-08-24 Philippe Gaucher

The paper establishes an equivalence between directed homotopy categories of (diagrams of) cubical sets and (diagrams of) directed topological spaces. This equivalence both lifts and extends an equivalence between classical homotopy…

Algebraic Topology · Mathematics 2026-02-02 Sanjeevi Krishnan

We formulate a version of Beck's monadicity theorem for abelian categories, which is applied to the equivariantization of abelian categories with respect to a finite group action. We prove that the equivariantization is compatible with the…

Rings and Algebras · Mathematics 2014-08-04 Jianmin Chen , Xiao-Wu Chen , Zhenqiang Zhou

If $\mathcal C$ is a class of complexes closed under taking full subcomplexes and covers and $\mathcal G$ is the class of groups admitting proper and cocompact actions on one-connected complexes in $\mathcal C$, then $\mathcal G$ is closed…

Group Theory · Mathematics 2014-11-26 Richard Gaelan Hanlon , Eduardo Martinez-Pedroza

We develop a space-level refinement of the $2$-factor homology by constructing a stable homotopy type associated to a certain family $\mathscr{G}$ of planar trivalent graphs equipped with perfect matchings. Specifically, we define a cover…

Geometric Topology · Mathematics 2025-08-19 Nilangshu Bhattacharyya

We consider colored operads and their actions on categories. As a special example we construct a cobordism category with a colored operad action arising from oriented planar arc diagrams. This is used to construct an invariant of oriented…

Geometric Topology · Mathematics 2019-03-18 Gisa Schäfer , Yasuyoshi Yonezawa

We define and study equivariant analytic and local cyclic homology for smooth actions of totally disconnected groups on bornological algebras. Our approach contains equivariant entire cyclic cohomology in the sense of Klimek, Kondracki and…

K-Theory and Homology · Mathematics 2007-05-23 Christian Voigt

This paper gives a uniform-theoretic refinement of classical homotopy theory. Both cubical sets (with connections) and uniform spaces admit classes of weak equivalences, special cases of classical weak equivalences, appropriate for the…

Algebraic Topology · Mathematics 2021-09-20 Sanjeevi Krishnan , Crichton Ogle

We establish abstract Adams isomorphisms in an arbitrary equivariantly presentable equivariantly semiadditive global category. This encompasses the well-known Adams isomorphism in equivariant stable homotopy theory, and applies more…

Algebraic Topology · Mathematics 2024-10-03 Bastiaan Cnossen , Tobias Lenz , Sil Linskens

We show that the unnormalised Khovanov homology of an oriented link can be identified with the derived functors of the inverse limit. This leads to a homotopy theoretic interpretation of Khovanov homology.

Geometric Topology · Mathematics 2014-11-26 Brent Everitt , Paul Turner

As part of their construction of the Khovanov spectrum, Lawson, Lipshitz and Sarkar assigned to each cube in the Burnside category of finite sets and finite correspondences, a finite cellular spectrum. In this paper we extend this…

Geometric Topology · Mathematics 2023-12-29 Federico Cantero-Morán , Sergio García-Rodrigo , Marithania Silvero

For associative rings with anti-involution several homology theories exists, for instance reflexive homology as studied by Graves and involutive Hochschild homology defined by Fern\`andez-Val\`encia and Giansiracusa. We prove that the…

Algebraic Topology · Mathematics 2026-01-14 Ayelet Lindenstrauss , Birgit Richter